clean main sketch file

src/paddle.cpp

@@ -32,3 +32,25 @@ uint8_t Paddle::get_score() {
 void Paddle::reset() {
   _score= 0;
 }
+
+bool check_paddle_movements(Paddle &p1, Paddle &p2) {
+  bool need_refresh= false;
+  if (digitalRead(P1_BTN_UP) == LOW) {
+    p1.move_pad_up();
+    need_refresh= true;
+  }
+  else if (digitalRead(P1_BTN_BOTTOM) == LOW) {
+    p1.move_pad_down();
+    need_refresh= true;
+  }
+
+  if (digitalRead(P2_BTN_UP) == LOW) {
+    p2.move_pad_up();
+    need_refresh= true;
+  }
+  else if (digitalRead(P2_BTN_BOTTOM) == LOW) {
+    p2.move_pad_down();
+    need_refresh= true;
+  }
+  return need_refresh;
+}